Finding the Fourth Proportional to 5,389,986.20, 8,086,145.70 and 1,603,851.80
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Solution
The fourth proportional to 5,389,986.20, 8,086,145.70 and 1,603,851.80 is: 2,406,124.78
Step by Step Solution
- Step 1: Write the proportion equation
5,389,986.20 : 8,086,145.70 = 1,603,851.80 : x - Step 2: Convert to fraction form
5,389,986.20/8,086,145.70 = 1,603,851.80/x - Step 3: Cross multiply
5,389,986.20x = 8,086,145.70 × 1,603,851.80 - Step 4: Simplify right side
5,389,986.20x = 12,968,979,336,007.26 - Step 5: Solve for x
x = 12,968,979,336,007.26/5,389,986.20 - Step 6: Final answer
x = 2,406,124.78
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.